| Cities | Distance |
|---|---|
| Watford to Rhondda | 129.60 mi (208.58 km) |
| Watford to Rhosllanerchrugog | 146.12 mi (235.16 km) |
| Watford to Rhyl | 173.43 mi (279.12 km) |
| Watford to Rhymney | 123.82 mi (199.27 km) |
| Watford to Richmond | 14.34 mi (23.08 km) |
| Watford to Rickmansworth | 3.22 mi (5.19 km) |
| Watford to Ripley | 105.41 mi (169.64 km) |
| Watford to Ripon | 177.88 mi (286.27 km) |
| Watford to Risca | 115.63 mi (186.09 km) |
| Watford to Rochdale | 154.24 mi (248.22 km) |
| Watford to Rochester | 43.10 mi (69.36 km) |
| Watford to Rock Ferry | 161.71 mi (260.24 km) |
| Watford to Rogerstone | 114.10 mi (183.62 km) |
| Watford to Romford | 25.29 mi (40.70 km) |
| Watford to Romsey | 66.16 mi (106.47 km) |